초록

Methods and compositions for wellbore treating fluids that include zeolite and at least one carrier fluid.

대표청구항 ▼

The invention claimed is: 1. A wellbore treating composition for introduction into a subterranean zone comprising: a pill that forms a mass upon contact with a drilling fluid used in drilling a wellbore penetrating a subterranean zone, said pill comprising: a carrier fluid, a zeolite selected from

The invention claimed is: 1. A wellbore treating composition for introduction into a subterranean zone comprising: a pill that forms a mass upon contact with a drilling fluid used in drilling a wellbore penetrating a subterranean zone, said pill comprising: a carrier fluid, a zeolite selected from the group consisting of analcime, bikitaite, brewsterite, chabazite, clinoptilolite, faujasite, harmotome, heulandite, laumontite, mesolite, natrolite, paulingite, phillipsite, scolecite, stellerite, stilbite, and thomsonite, and a surfactant selected from the group consisting of cetyltrimethylammonium chloride, cocoaalkyltrimethylammonium chloride, cocoalkyldimethylbenzyl ammonium chloride, stearyltrimethlyammonium chloride, alkylbehenyltrimethylammonium chloride dihydrogenatedtallowalkylethylmethyleammonium ethosulfate, didecyldimethylammonium chloride, dicocyldimethylammonium chloride, distearyldimethylammonium chloride, dioleyldimethylammonium chloride, trilaurylmethylammonium chloride, cocoyl-bis-(2-hydroxyethyl)methylammonium chloride, polyoxyethylene (15) cocoalkylmethylammonium chloride, olyel-bis-(2-hydroxyethyl) methylammonium chloride, tallowalkylmethyipropylenediammonium dichioride, and trimethyltallowammonium chloride. 2. The wellbore treating composition of claim 1, wherein the pill comprises zeolite in an amount of from about 5% to about 75% by weight based on the total weight of the zeolite and the carrier fluid. 3. The wellbore treating composition of claim 1, wherein the pill comprises zeolite in an amount of from about 20% to about 60% by weight based on the total weight of the zeolite and the carrier fluid. 4. The wellbore treating composition of claim 1, wherein the pill comprises zeolite in an amount of from about 30% to about 50% by weight based on the total weight of the zeolite and the carrier fluid. 5. The wellbore treating composition of claim 1, wherein the pill further comprises an activator. 6. The wellbore treating composition of claim 5, wherein the activator is present in the pill in an amount of from about 1% to about 20% by weight, based on the total weight of the zeolite and the carrier fluid. 7. The wellbore treating composition of claim 5, wherein the activator is selected from the group consisting of calcium hydroxide, sodium silicate, sodium fluoride, sodium silicofluoride, magnesium silicofluoride, zinc silicofluoride, sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide, sodium sulfate, and mixtures thereof. 8. The wellbore treating composition of claim 5, wherein the activator comprises calcium hydroxide in an amount of from about 1% to about 20% by weight based on the total weight of the zeolite and the carrier fluid. 9. The wellbore treating composition of claim 1, wherein the carrier fluid comprises an oil-based fluid. 10. The wellbore treating composition of claim 1, wherein the carrier fluid comprises one or more oil-based fluids selected from the group consisting of canola oil, kerosene, diesel oil, fish oil, mineral oil, sunflower oil, corn oil, soy oil, olive oil, cottonseed oil, peanut oil and paraffin. 11. The wellbore treating composition of claim 1, wherein the carrier fluid comprises a water-based fluid. 12. The wellbore treating composition of claim 1, wherein the carrier fluid is a water-based fluid selected from the group consisting of fresh water, unsaturated salt solution, brine, seawater, and saturated salt solution. 13. A system comprising: a drilling fluid used in drilling a wellbore penetrating a subterranean zone, and a pill comprising a carrier fluid, a zeolite and a surfactant,the zeolite being selected from the group consisting of analcime, bikitaite, brewsterite, chabazite, clinoptilolite, faulasite, harmotome, heulandite, laumontite, mesolite, natrolite, paulingite, phillipsite, scolecite, stellerite, stilbite, and thomsonite wherein one of the drilling fluid and the carrier fluid is a water-based fluid, and the other of the drilling fluid and the carrier fluid is an oil-based fluid, wherein the pill and the drilling fluid form a mass for sealing at least one space in the subterranean zone selected from the group consisting of fissures, fractures, caverns, vugs, thief zones, low pressure subterranean zones, and high pressure subterranean zones, and the surfactant being selected from the group consisting of cetyltrimethylammonium chloride, cocoalkyltrimethylammonium chloride, cocoalkyldimethylbenzyl ammonium chloride, stearyltrimethlyammonium chloride, alkylbehenyltrimethylammonium chloride, dehydrogenated-tallowalkylethylmethylammonium ethosulfate, didecyldimethylammonium chloride, dicocoyldimethylammonium chloride, distearyldimethylammonium chloride, dioleyldimethylammonium chloride, trilaurylrnethylammonium chloride, cocoyl-bis-(2-hydroxyethyl)methylammonium chloride, polyoxyethylene (15) cocoalkylmethylammonium chloride, olyel-bis-(2-hydroxyethyl) methylammonium chloride, tallowalkylmethylpropylenediammonium dichloride, and trimethyltallowammonium chloride. 14. The system of claim 13, wherein the pill comprises zeolite in an amount of from about 5% to about 75% by weight based on the total weight of the zeolite and the carrier fluid. 15. The system of claim 13, wherein the pill comprises zeolite in an amount of from about 20% to about 60% by weight based on the total weight of the zeolite and the carrier fluid. 16. The system of claim 13, wherein the pill comprises zeolite in an amount of from about 30% to about 50% by weight based on the total weight of the zeolite and the carrier fluid. 17. The system of claim 13, wherein the pill comprises an activator present in an amount of from about 1% to about 20% by weight, based on the total weight of the zeolite and the carrier fluid, the activator being selected from the group consisting of calcium hydroxide, sodium silicate, sodium fluoride, sodium silicofluoride, magnesium silicofluoride, zinc silicofluoride, sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide, sodium sulfate, and mixtures thereof. 18. The system of claim 13, wherein the carrier fluid comprises an oil-based fluid and the drilling fluid comprises a water-based fluid. 19. The system of claim 13, wherein the carrier fluid comprises an oil-based fluid selected from the group consisting of canola oil, kerosene, diesel oil, fish oil, mineral oil, sunflower oil, corn oil, soy oil, olive oil, cottonseed oil, peanut oil and paraffin. 20. The system of claim 13, wherein the carrier fluid comprises a water-based fluid selected from the group consisting of fresh water, unsaturated salt solution, brine, seawater, and saturated salt solution.